Bobbin-cleaning machine



E. H. VOWLES BOBBIN CLEANING MACHINE NW, 6,, 1mg. 1,4732% Filed Sept. 1921 5 Sheets-Sheet 1 Jul/en for Nov. 6,1923. 1,473,265 E. H. VOWLES BOBBIN CLEANING MACHINE Filed Sept. 1. 19 21 5 Sheets-Sheet 2 New. 6 E923.

E. H. vowLEs BOBBIN CLEANING MACHINE Filed Sept. 1. 1921 s sheets-sheet 5 Nov. 6 1923.

' E. H. VOWLES BOBBIN LCLEANING MACHINE Filed Sept. 1. 1921 5 Sheets-Sheet 4 E. H. VOWLES BOBBIN CLEANING MACHINE Filed Spt.-1. 1921 5 Sheets-Sheet 5 Patented Nov. i223.

@NETEE "ears-air caries.

ERNEST VOW'LES, OF FITCHBURG, MASSACHUSETTS, ASSIGNORJ TO FITCTIBUR-G BOBBIN CLEANING MACHINE COMPANY, A CORPORATION OF MASSACHUSETTS.

BOBBIE-CLEANING MACHINE.

Application filed September T all whom it may concern "1e it known that I, EnYns'itH. Vownns,

a citizen of the United States, residing at Fitchbnrg, in the county of Worcester and State of Massachusetts, have invented a new and useful Bobbin-Cleaning Machine,

of which the following is a specification.

This invention relates to a machine for cleaning the waste from bobbins. The principal objects of the invention are to locate bobbins in proper position for cleaning and to clean them automatically and continuously; to provide a construction of the rotary type for the purpose of securing continuous operation wherein the feeding and slipping of the bobbins will be in different stages of progress on several bobbins at the same time; to provide improved means for supporting the bobbins, guiding them in their course, forcing them to move through the stripping jaws and ejecting them from the machine when cleaned, and

ejecting the filling also; to provide improvements in the jaws for performing the cleaningoperation and in the means for operating said jaws; and to provide improved mechanism for operating the respective parts of the machine.

Further objects and advantages ofthe in- :20 vention will appear hereinafter.

Reference is tobe had to the accompanying drawings in which Fig. 1 is a plan of machine constructed in accordance with this invention; Fig. 2 is a central sectional'view on the line 22 of Fig. 1 showing the base and some other parts in side elevation;

Fig. 3 is a sectional view of one of the hoppers on the curved line 33 of Fig. 1;

Fig. 4- is a sectional vie-w of one of'the hoppers on the radial line 41 of .Fig. '1;

Fig. 5 is a plan on an enlarged scale of the mechanism for opening and closing the jaws, showing certain parts in section on the line 55 of Fig. 2;

Fig. 6 is asectional view ofa pair of jaws in closed operative condition on the line 6-6 of Fig. 5; 1

Fig. 7 is an enlarged sectionalview on a vertical plane through the center of one of the bobbin conveying tubes showing parts in elevation;

Fig. 8 is asectional view on the line 88 of Fig. 2;

Fig. 9 is a plan of the stripping jaws;

the base.

1, 1921. Serial No. 497,583.

Fig. 10 is a sectional view of one of-thc yielding means for operating the jaws on the line 10-1O ofrFig. 5; i

'Fig. 11 is a view-of the surface of the cylindrical cam laid out flat, and

Fig. 12 is a bottom planview of the cam cylinder showing the can'igrooves thereon.

The inventionis intended for use with an automatic feeding device or it canbe fed by hand. It is shown as provided with abase 10 having an upwardly extending arm 11 constituting apart of the frame. The top top of this shaft-1.6 is'a pinion e r-gear 17 meshing with a spur gear 18 which is fixed to a rotary disc 19. This disc l 9'has a hub j ournalled to rotate on the stationary shaft 12.

When the drivingshaft is rotated continually the disc rotates in the direction of the arrow in Fig. 1. Near its circumference this rotary disc 19 carries a plurality 0f projections to which are bolted carriers'20 having thereon supports 21 fora plurality of bobbin guides 22, in the form of tubes. Lhave shown'six of these as surrounding the circular disc 19 but any desired number can be employed.

Each one of the tubular guides is fitted at .the top into the bottom of a hopper 23.

These hoppers are arranged. so that they constitute a complete circle at the top as indicated in Fig. 1. Each one has a central outlet opening 24 at the bottom, its walls slanting down to this opening. Bobbins in troduced into the circle of these hoppers will necessarily each fall into one of them and eventually assume an upright position and slide down, butt end first, through the outlet or opening 2 1 into the concentric tube 22 below. The bobbins can be introduced, as stated,by hand or by a feeding mechanism that will arrange them with their butt ends down. These hoppers rotate of course with the disc 19. The framework is provided 'w'ith a spider consisting of radial arms at the top extending from ,a hub freely rotatable on the stationary shaft-'12. This} with the" carriers 20constitute s a 'franieqfor supporting thelio-ppers andtubes and certain other ieaturesas w ll appear. 7 r

- Underneath the series of tubes at the bottomis astationary stop27 of arcuate form adapted to. hold the bobbins through outa pai't'of a revolution and then allow them ;to drop down through the-bottoms oi the respective tubes in'which they are located. The tubes are also provided with openings 28 through their sides through :WVlllClhPl'OjBCt pivoted stops 29, each adapted to move inwardly and hold a bobbin in where it. will have no effect A spring 26 elevated position in thetube until the ends 'Qf the stops 29 engage an arcuate cam 30 on the stationary arm 11 to open the stop or,

in other words, swing itl'outsidethe tube tends to close each stop in opposition to the cam.

Each carrier 2Q'extends up at the sides at 31. Between these spaced sides*31. at the top is located the bottom of an upright guiding member 32' which is bolted to the .spider 25 at the top. Thus these guides rotate with the disc 19 and spider at the circumference carry the hoppers 23.

Brackets 9 j Each guide 32 carries a vertical slide Each of these slides has a cam roller 34:

.operated' in a manner to be described-projecting radially inwardand mounted on a "radial stud. It isalso provided. with averand having apusher head on the bottom.

The pusher head has a conical lower surface for engaging the end or" a bobbin andpush ing. it down throughthe tubular guide 22.

This pusher head extends into the tube' 22 throu h an opening in the side and, is adapted to move down in tlictube, then to swing outWa diy through this opening in its side and ,enter it; again'further along. The swinging motion is controlled by an ar- :cuate stationary cain which is engaged by an arm 37 on the top oi the rod 33 as the frame rotates. ,Therod 33 is provided with a spring 38 for yieldiiigly holding the head down and exerting a yielding downward pressuregso that-it will give in case it IDGBtSNVlth any undueresistanceb I Each guide 32 153- 180 provided with a vertical slide 40 having an inwardlyextending I cam rollerl foroperating it and provided at thebottom with a radialplatc having two horizontal studs 4L3 each provided with a jaw. Each stud also'has an arm er- -tei oling from it. Thesetwo arins'normally projectdownwardly and are connectedby a spring 46 for holding-the arms inward toward each other and thejaws normally in yielding contact with a couple of stops 47.

As will appear later these jaws receive the:

bobbin BL Fixedly niounted on the stationary shaft."

. 12 by means :of a'botto iii plate 18:.andan' upper 'spider 49 1s a cylii'i'dertO. .Thisa'cy'linder has a. cam groove 51 .1 01 illlQ'IOllGl' 3t of thesegrooves extend alltthe way around the cylinder as indicated in FigJllfl From the shape of these'groo ves as showi i. in that- "a'nd ajcam groove '52 for the roller-41,. Both r i figure it willbe seen thateach'upperroller 34 v is held at thetop for a part 'ofa'revolution and ,then descends rather suddenly "tof its;

dually I lowest position-at 51 and then"; rises to ts uppermost pOSitlOlL. ,This-grath uallyresultsl in thelowering otthe pusher V head135and then raising 'i't again." The groove has a. substantially flioriaontalportion'; at the top. of its travel ;which;} at a point 52* near the point 51, .coiinnencesto descend. In other words, whenithc roller 34: commences toxmove up, the roller} 11a which has been forawhilefin'its highest posit on, immediately commences to descend. Therefore, as soon as. the pusher35 C0111- mencesto rise the studs'43 commence to go down and they descend until the point 52*1 of the cam rise quickly.

number of bobbin chutes and the groove 54 travel a corresponding number of'rollers 56. Each of these rollers accomplishesa similar result.

Each one isniounted on a studon an arm- 58 which isspivoted on a groove 52. is reached and then stud 59 on the rotating,'disc 20'. -These w studs travel around with the" plate andthe two sets of arms'58 oscillate upoir'them as they move. -Each one is provided with vsocket so that these parts constitute ag'lever Into the sockets of one series extend'rods 60 each of which/is provided with longitudiii'al slot centrallv extendiii throu h it for v t: t:

receiving at-its twoends apair of flanged] plates-61. V 62 pressing them apart.v Opposite each or the studs-'59 is aiiothei-stud 63 which hasa Between these; plates is a spring socket head 64: provided with a tube 65 also slotted longitudinally and centrally in a plane atright' angles to the plane of the slot through the rod '60, foi'rreceiving the plates 61. The end ofthe rod (SO is' guided in the socket 66 in the headfil. Pivoted on this head is an arm 67 which constitutes a part of lever pivoted'on a stud 68' on the rotating plate 19. The'otlier arm of this lever is' provid d with armrvedimck "meshing with a pinion 70. r

It is to be statedat this point that lfhave V I described only-one of each pair ofthese de vices. It is to be noted thatthere is anotherone having a longer spring arm operated by the other cam groove 5st through the roller 56. The two shafts 73 on which the two pinions 70 are mounted have gear segments 71 fixed thereon or equal diameters meshing with each other and they are also arranged to constitute a part of a lever 72 in each case. There is a pair of these for each-set, so to speak, and each lever supports a jaw.

It is to be noted that there is an upper pair of jaws T5 and a lower pair ofjaws 76. The jaws of each pair are pinned or otherwise fixed to their respective shafts 73 alternately. By that'I mean that one jaw arm of a pair is pinned to its shaft 73 and the other jaw arm of the same pair is freely rotatable on its pin, but the gear segments 71 cause the two jaws to move oppositely and equally whenever the shafts 73 are rotated although one of them rotates idly so far as one jaw isconcerned. The left'hand arm of one pair is fixed to the left hand shaft and the right hand arm of the other pair is fixed to the right hand shaft but the motion is always equal and opposite tor-each pair of aws.

The cams 53 and 54 there fore act through the spring rods 60-64sto yieldingly close the jaws at certain times and thereafter open them.

The upper jaws 75 whioh are designed to engage the smooth part of the bobbins B are formed with metal operating blades, preferably steel. The lower jaws 76 which have to operate over the larger end of the bobbin, which is provided with .circumferential ribs, are made or some softer mateial that will not injure the bobbins, as for example, vulcanized fiber.

The operation of the device is as follows The bobbins, as hasbeen stated, are fed by hand or any desired mechanical means, butt downward, into the revolving circle of hoppers at the top. As thetops ot'the hoppers form a substantially continuous circle, each bobbin will be received in some one of the hoppers. On account of the shape of the same, it will be broughtby gravity down into a position in which its butt end drops down through the outlet opening'2-l into the tubular guide 22 below. Now,

taking up the course of a single bobbin through the machine, let it be assumed that as the mechanism rotates a bobbin drops down through the opening 241: of one hopper just as the latter passes out from under the top 01? the arm 11. It is carried along with the tube 23 as the stop 29 at'that time moves away from the cam 30 and closes and is held by its spring 26 in closed position. T herefore the bottom of the bobbinres-ts on this stop as the whole machine rotates throughout nearly a. whole revolution until the projecting arm on the stop lever engages the cam 30. That swings the stop 29'outside the bobbin down positively with them al discharged from the machine.

the tube 22 as shown in Fig. 8 and allows the bobbin to bedropped. It descends in the tubular guide into contact with the arcuate stop 27 below at the bottom and travels along on that as far as that stop goes. Then it passes 'over the end of the stop and drops down through the bottom of the tubular guide. It is just at this time that the jaws 75 and 76 are closed by their respective cams. They grip the bobbin at a point 'near the butt by the aws 76 engaging the rough part of the bobbin just over the butt and the jaws 75 engaging the larger end of the smooth part of the bobbin. This prevents further descent by the act-ion of gravity alone. The arm 37 now comes into contact with the cam 36 and turns the head into the tube 22. The cam groove 51 at this time operates the roller 3% to push down the heat which has swung into the tube 22 through the opening. This continues to descend in accordance with the shape of the cam groove above described and the cup-shaped bottom of the head 35 engages the small end 01" the bobbin and positively forces it down through the jaws 76 and to remove the filling from the bobbin. This head 35 can take the bobbin only to av point at which the small end is a little above the jaws 75 and at this time, as described above, the cam groove 52 moves the roller 41 down and with it the slide 40. The jaws l3 engage the bobbin just over the butt. This motion of the slide causes the jaws todescend pullin the way through thejaws 7 5 and? 6.

These parts are rotating all the time about the shaft-12 and as soon as the bobbin free from the jaws 76 it will also be free to slide down by gravity out of the jaws 43 which do not positively grip it on account of the stops 4:7. Thus, the bobbin is The tubular guide 22 and the jaws 7 5 and 76 as well as the other parts, of course, continue their rotation. The cams in the bottomof the cylinder then openthe'jaws 7 5 and 7 6 and, as shown'at'the right hand of Fig. withdraw them. within horizontal passages in the supports 20. The movement of the jaws against the edges of these passages strips thewaste from these jaws on which it lies and it passesbelow and is discharged at a certain point.

It will be understood, of course, that when the bobbin under'discussion dropped on the stop 27 the tube 22 had already re- -ceived another bobbin above because the stop 29 had at that time moved inwardly into the tube'tohold another bobbin at that point. Thus, during a part of therotation of the machine there are two bobbins in a tube 22 as indicated at the left/of Fig. 2. 'lheposition at the right in Fig. 2 indicates ,showii exceptas to the the parts just before the second-'bobbin is introduced into thetube 22 from above. I It'will beseen from what has beentstated thatthe device is entirely automatic as feeding of the bobbins into the hopper. i-The bobbins'can be introducedinto the hoppers faster than the machine can take care of them at times if desii'ed,-but only one can pass out of-the hopper just big'eno-ughf'to let thebutt end of'one bobbin through," The several stops 29' close practicallyas soon as they have opened to at a time: because the outlet i524; is

discharge a bobbin-so thatthey are in a position to stop the descent of "the next bobbin from above just as soon as the previous bobbin has been dropped down by them This part of the tube practically constitucs an automatic feed for the part of the below which constitutes a holder and'guide for the bobbin while it is beingstripped. 7

It will be seen that although I have shown the inachine'as having six bobbinstrippi'ng elements t .canbe made either larger or smaller'on the same principle without de-. parting from the scope of the lllVGIllllOH as expressed inthe claimsand that other modifications can be made thereinundei' "the same conditions Therefore, I donot wish tobeliniited to any. particulai'muinber of bobbin stripping elements or the exact con-' struction oftlic parts herein shown and de- SCllbGd but what I'do claim is: 7

1.;A bobbin stripping machine coinpr1s- 'ing means for stripping waste from bobbins,

and acircular seriesof hoppers for receiving the bobbins dropped therein loosely and guiding'them toward the stripping means. 2. A bobbin stripping machine comprising means for stripping waste'from' bobbins,

and a circular series of hoppers for receivingthe'bobbins and gu d ng them toward t'lie stri jping means, each hopper being of a flaring'shape and also having front and rear walls of arcuate configuration, saidsef ries of hoppers together const tuting a coinplete circle. r

, 3. 'A bobbin stripping machine compris' ing a series of'hoppers for receiving the bobbins and guiding them. toward a stripping means, each hopper having front and rear walls of arcuate configuration, and together constituting a complete circle.

4:. A hopper for a bobbin stripping'machine comprising front and. rear parallel arcuate walls and end walls and having sides which slope gradually toward the discharge end, said discharge endhaving a.

single opening therein toward which the wallsconverge and of a size 5. In a bobb'n combination of, means for stripping waste from a bobbin, a hopper for directing the tubesufficient to re ceive only the butt end of a bobbin and discharge, it therefrom. g

stripping machine, the

vbobbins to the stripping means, saidhopper havingfront and rear parallelarcuate walls andend walls and having sides'which slope graduallytoward the discharge end, said discharge end having asingle ope'ning therein towardwhich the wallsiconvergeiandr'of a size sulficientftoreceive the butt endIof a bobbin and discharge it therefrom, was

guide in registration anc'l' inaxial'aligninent with said: dischar e. opening for; receiving:

the bobbinstherefibin; p a, In; a bobbin stripping machine, th

combination. of-

plurality of ,ineans-j for stripping waste from bobbins arranged in a circle, a circular seriesfof hoppers :Forr'e u 'ceiviiig the'bobbinsand guiding them to ward th stripping nieans,each hop-perbe and'rear walls of arcuateconfiguration, said series of hoppers together 'constituting a complete c rcle, and a circular series of guides, one atthe end of ,cach'hopper, lo-

cated'in position to receive the bobbins therefrom and to direct them to the stripping means.

7. Ina bobbin stripping niachine,; the

combination of means for stripping waste ingof a flaring shapefand also having front from bobbins, a circular series of hoppers towardthe stripping means,- each hopper. be ing of a'flaring'shape andalso having front and rear walls of arcua'te 7 configuration,

end of each hopper'located in position to re ceive' the bobbins therefrom and to direct; them to'the stripping means, said hoppers, guides and strippingmeans being rotatableon a common axis. I

8. In a bobbin str pping machine, the

c'ombination'with a hopper folreceiving the bobbins, arguide at the end of llllQhOP per, and' jawsratthe opposite end of the forreceiving the bobbins and guiding them 1 said series of hoppers together constituting a' complete circle, and a tubular guide at the loo guide for engaging the bobbin iOQSiIlP, the" waste therefrom, of means for rotating 7 the v hoppers, guide and'jaws abouta common axis at a distance from them.

9,1 In i a bobbin stripping machine, the? combination with a vertical shaft, ofa series ofvert-ical bobbin stripping devices located parallel thereto and supported there from, means for rotating said stripping devices. 7

binstripping devices located parallel thereto and supported therefrom, ine'ansfor feeding the bobbins longitudinally in a direction parallel with the shaft,and means for rotating said stripping devices, about the shaft; 1 11. In a bobbin stripping machine, the

combination of a series of rotary guides for the bobb ns located in position fo receiv ng 1 ,avaaee the bobbins, with jaws for stripping the filling from the bobbins arranged to rotate with the guides, and means also rotatable for pushing the bobbins through the guides.

12. In a bobbin stripping machine, the combination of a series of rotary bobbin receiving hoppers, and a corresponding series of guides for the bobbins rotatable with the hoppers and located in position for receiving the bobbins therefrom, with jaws for stripping the filling from the bobbins arranged to rotate with the guides. and means also rotatable fo pushing the bobbins through the guides.

13. In a bobbin stripping machine, the combination with a hopper for receiving the bobbins, a guide at the end of the hopper, means for entering the guide and pushing the bobbin therealong away from the hopper, and jaws. at the opposite end of the guide for engaging the bobbin to strip the waste therefrom as the bobbin is pushed through, of means for rotating the hoppers, guide, pushing means and jaws about a common axis at a distance from them.

14. In a bobbin stripping machine, the combination with a guide for receiving the bobbin, means for entering the guide and pushing the bobbin therealong, and jaws at the end of the guide for engaging the bobbin to strip the waste therefrom as the bobbin is pushed through, of means for rotating the guide, pushing means and jaws about a common axis at a distance from them.

15. In a bobbin stripping machine, the combination with a central stationary vertical shaft, of a series of hoppers arranged therearound in a circle, means for supporting said hoppers from the shaft and rotating them on it, a series of vertical guides under the hoppers in position for receiving bobbins therefrom, means at the bottoms of the guides for stripping the bobbins as they pass down through them, and means for supporting said guides and stripping means to rotate with the hoppers.

16. In a bobbin stripping machine, the combination with a vertical central stationary shaft, of a disc mounted at the bottom of said shaft and a spider at the top of said shaft, both rotatable thereon, a series of hoppers for receiving the bobbins supported by said spider and located vertically, a series of tubular guides supported by said disc and located under the hoppers to receive the bobbins therefrom, and a corresponding series of jaws carried by said disc for strip: ping the waste as the bobbins pass down through, and are discharged from, the bottoms of said guides.

17. In a bobbin stripping machine, the combination with a vertical central stationary shaft, of a disc mounted at the bottom ofsaid shaft and a spider at the top of said shaft, both rotatable thereon, a gear fixed with respect to said disc, a driving shaft, gearing for rotating said shaft from the driving shaft, a series of hoppers for receiving the bobbins supported by said spider and located vertically, a series of tubular guides supported by said disc and located under the hoppers to receive the bobbins therefrom, and a corresponding series of jaws carried by said disc for stripping thewaste from the bobbins as they pass down through,

and are discharged from, the bottoms of said guides.

18. In a bobbin stripping machine, the combination with a vertical central stationary shaft, of a disc mounted at the bottom of said shaft and a spider at thetop of said shaft, both rotatable thereon, a gear fixed with respect to said disc, a driving shaft, gearing for rotating said shaft from the driving shaft, a series of tubular guides supported by said disc to receive the bobbins. and a corresponding series of jaws carried by said disc for stripping the waste from the bobbins as they pass through, and are discharged from, the bottoms of said guides 19. In a bobbin stripping machine, the combination of a series of vertical guides, means for guiding the bobbins into the guides with one end down, said guides being arranged in a circle, means for rotating said guides about the vertical axis of said circle, a series of stops, one for. each guide, each adapted to enter its guide to receive a bobbin thereon and carry it part way around with the guide, and stationary means for withdrawing said stop from its guide to all-ow the bobbin to drop down from the guide.

20. In a bobbin stripping machine, the combination of a series of vertical guides, arranged in a circle and each having a side opening, means for rotating said guides about the vertical axis of said circle, a series of stops, one for each guide, each adapted to enter its guide to receive a bobbin there on and carry it part way around with the guide, stationary means for withdrawing said stop from its guide to allow the bobbin to drop down from the guide, each of said stops comprising a plate pivoted on a vertical axis, and a spring for normally forcing said plate inwardly through said opening in the side. of the guide into central posi tion therein. T

21. In a bobbin stripping machine, the combination of a series of vertical guides arranged in a circle, means for rotating said series of guides about thervertical axis of said circle, a series of stops, one for each guide, each adapted to enter its guide to receive a bobbin thereon and carry it part way around with the guide, stationary means for withdrawing said stop from its guide to allow the bobbin to drop down from the guide, each of said guides extending be low said stops and'being-open at the bottom, and an arouate stationary stop located under-the path of travelof said guides for a'distance to hold a bobbin againstbeing" dischargedfrom the guides until beyond thearcuate stop.

J 22.111 a bobbinstripping machine, the

combination of a series; of 'vert-icalguides, said guides being arrangedin a circle, means .fo 'firotating said guides about the vertical axisiof said circle,.a series of stops, one for each guide, each adapted'to enter its guide 7 tofreceivea bobbin thereon and'carry it part way around] with ;the guides, stationary ineansrlor withdrawing said stop from its guide to -allow the bobbin to I drop down from the guide; means movable with each guide for engaging abobbin as it emerges therefrom at the botto n' and resisting, its further descent, and means adapted to enter 7 each guide below said stopland' movable down in. the j uide to positively push the bobbin out of t e bottom thereof. 7

- 23.:In abobbin stripping machine, thecombinati'oii of a circular series of tubular guides arranged vertically for receiving the bobbins with their butt ends down, an arouate stop along the'bottom of the path of travel of said guides for preventing the bobbins from issuing from the guides'while 24. In a bobbin strippinginachine', the

' combination of a circular series oi tubular guides rotatable about the center of the- 131F016, each guide having an opening n its side, a-guiding member adjacent the first named guides and rotatable with the1n,,a

falo-ng the guides" as they rotate to push a,

slide on the guiding member having a head adapted to move laterally into the opening inthe guide, means for forcing-the slide bobbin positively from the tubular guide,

and jaws rotatable with the guides and "located at their ends for engaging the bobbins as" theyemerge fromthe guides for strippingthe waste therefrom.

25.*In' a bobbin stripping machine, the

combination of a1 series of bodily movable vertical tubular guides, each guide having an opening in its side, a guiding member topush a bobbinpositivelv from thetubular guide, jawsjmovable with the guides and i 7 "located below them for engaging the bobbins as tliey-einergefroni the guides for stripping the wastetherefrom, and means below the they? pass 7 guides, 1 adjacent the first'named guides and movable withthenm a slide on-theguid'ing member 7 havinga head adapted to move laterally' into the openingin each guide, means for having 7 face, and nieans controlled said cam V V I ggroeves i'orino-ving the pullers-and pushersi forcing the slide down as the guides move j n /sass;

"guides movable with them for engaging the butt ends" of thei'b'obbins and positively vpullingtlieindown through the jaws? v y r '26. In a bobbin stripp ng mach nefthe combination of a'circular series ofgu des rotatable about the. cent r of the circle, each guide having anopeningin its side, a guid ing member adjacent the first'named guides rotatable with them, slide ontheguiding member having a 'head adapted-to inove" laterally into the; opening in'gtheflguide,

'ineans forttoroing the slides along the guides as they rotate to push a bobbin positively flOlll the tubular guide,"jaws rotatable with the guides and" located beyond themfifor engagingfthe' bobbins as they emerge from the iguidesa and r for stripping the waste *bllfilQIlOIll, and means beyondwthe guides rotatable with them "for engaging. their butt ends andpositively pullingv them through I the jaws said last named means" being located on the guiding means and movable; 'therealongr 27; In a a bobbiirstripping machine, the combination of a series of movable guides for the'bobbins, a correspondingseries of, guidingtra nes' inountedto move with the guides, a seriesjo-l pushers, one forieach ing means beyond their respective guides for v guide, located on said guiding frames and] guided thereon, a series. of pullers also mounted on said guiding frames and hav V f engaging the buttendsof'the'bobbins and pulling the npositively out of the; guides, mounted, adjacent to each guide "for engaging the bobbins andlstripping waste therefrom as they move out of-the guides,

and means mounted instatiohary position tor operating said pushersand pullers autoni aticallyas the guideszmove.

28 111 a bobbin stripping ina-chine, the

combination of a circular series of guides for tlldDOblDll'iS, a correspondingseries of H guiding :train'es mounted to rotate with the guides, a series of'pushers, one foreach guide, a series of pullers also mounted on said guiding lramejan'd having means he yond their respective guides for *'ei igagi1i g *the butt ends of the bobbins and pulling ftliem positively out of the guides,--j-aws mounted adjacent to each guide for engag 7 ing the bobbins and stripping waste there-f from' as they move out of'itlie' guides, a"

stationary vertical 'shaftf-ab oiit which" the 29.111 21 "bobbin stripping;machine,; the

combination of a; series oflguides forlthe guiding frame and jaws are some stationary cylinder on .said shaft bobbins, a series of pushers and a series of Y pullers havinghieans for engaging the] bobbins and moving them positively along the 'g'LtitlQS j aws'inounted' adjacent to each connected with the last named cam grooves for opening and closing the jaws.

30. In a bobbin stripping machine, the combination of a stationary shaft, a cam member on said shaft, a disc rotatable about said shaft, a series of tubular bobbm guldes carried by the disc and rotatable with it, a series of pairs of jaws at the end of said guides, and yielding means controlled by said cam member for opening and closing said jaws periodically.

31. In a bobbin stripping machine, the combination of a central stationary shaft, a cam member fixed to said shaft, a disc rotatable on said shaft, a series of tubular bobbin guides carried by the disc and rotatable with it, a series of pairs of jaws, each pair being located at the bottom of one of said tubular guides, yielding means carried by said disc and controlled by said cam member for opening and closing said jaws periodically, said yielding means comprising a pair of concentric rods slidable longitudinally with respect to each other, said. rods having diametrical passages therethrough, two plates located in said passages, a spring between the plates for forcing the plates away from each other and normally acting to force the rods apart, and a system of levers at the end of each set of rods transmitting motion from the rods to the jaws.

32. In a bobbin stripping machine, the

combination with a rotary series of bobbin guides, of a corresponding rotary series of jaws arranged to grip the bobbins as they emerge from the guides to strip the waste therefrom, each pair of jaws being pivoted on individual parallel axes, means connecting the jaws to cause them to rotate in unison toward and from each other, a lever for each pair of jaws having means for rotating said means as the guides rotate, a stationary cam, and means connected with said cam for oscillating said levers as the bobbin guides rotate.

33. In a bobbin stripping machine, the combination with a rotary series ofbobbin guides and a stationary cam, of a corresponding rotary series of jaws arranged to grip the .bobbins as they emerge from the guides and strip the waste therefrom, each pair of jaws being pivoted on individual parallel axes, gear segments connecting the jaws to cause them to rotate in unison toward and from each other, alever for each pair of jaws having means for rotating one of said gear segments, means connected with said cam for oscillating said levers as the bobbin guides rotate, a lever having a roller for engaging the cam, a pair of pins, one connected with each pair of levers and telescopingly arranged, said pins having longitudinal diametrical slots therethrough, two plates passing through said slots, and a spring mounted on the telescoping pin operating at its ends on said plates to force them apart and hold the levers apart yieldingly.

34. In a bobbin stripping machine, the combination 'of a bobbin guide open at the end, means for pushing a bobbin through the open end of the guide,'a pair of jaws, means for yieldingly forcing the jaws together against the bobbin, a slide movable parallel with the axis of the guide, a pair of levers mounted on the slide, each having a jaw at one end, said levers being yieldingly connected at the other end to force the jaws inwardly to engage the bobbin over its butt end at a point beyond the first namedjaws, and means for moving the slide outwardly to positively pull a bobbin through the aws.

35. In a bobbin stripping machine, the combination of a bobbin guide open at the end, means for pushing a bobbin through the open end of the guide, a pair of stripping jaws, means for yieldingly forcing said jaws together against a. bobbin, a slide movable parallel with the axis of the guide, a pair of levers mounted on the slide, each having a pulling jaw at one end, said levers being yieldingly connected at the other end to force the pulling jaws inwardly, stops on said slide for holding the jaws thereon in a position in which they do not grip the bobbins but engage over its butt end to enable them to pull it through the jaws, and means for moving the slide to positively pull a bobbin out of the guide and through the jaws.

36. In a bobbin stripping machine, the combination of a bobbin guide, means for advancing a bobbin therethrough and out at its end, a pair of steel jaws located in position to grip a bobbin at a position near the end of the guide, a second pair of jaws having grip surfaces of vulcanized fiber located beyond the first named jaws, and means for yieldingly closing both sets of jaws on a bobbin when it moves through the guide.

37. In a bobbin stripping machine, the combination of a bobbin guide, a pair of steel aws located in position to grip a bobbin near the end of the guide, a second pai of jaws having grip surfaces of vulcanized fiber located beyond the first named jaws, and means for yieldingly closing both sets of jaws on a bobbin.

In testimony whereof I have hereunto aflixed my signature.

ERNEST H. VO /VLES. 

